損傷鋼筋混凝土結(jié)構(gòu)延性研究.pdf

1、中南大學(xué)碩士學(xué)位論文損傷鋼筋混凝土結(jié)構(gòu)延性研究姓名：邊麗申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：羅小勇20100501ABSTRACTInrecentyears，asthechangesinseismicperformanceproblemscausedbydurabilityofconcretestructuresgeneralconcernofmoreandmorescholarshomeandabroadCarbonationo

2、fconcrete，steelcorrosionhasbeenrecognizedasthemostimportantfactorofaffectingthedurabilityofreinforcedconcretestructuresAsthemajorityofstructurestowithstandearthquakeshavebeenusedacertainnumberofyears，itsdurabilityinevita

3、blyincreaseastheusefullifeofdamageOCCULThus，tosomeextent，researchrelatedtonewaspectsofseismicperformance，itismoreimportantthanresearchonnewaspectsofseismicperformancetotheseismicperformanceofdamagedreinforcedconcretestru

4、ctureDuctilityforseismicperformancemeasurementisaveryimportantindicatorAndgoodductilityisanimportantstructuralprotectionagainstearthquakesThisdissertationwasmainlyresearchon：Firstlytheductilityofreinforcedconcretemateria

5、lswereanalyzed，respectivelydescribedtheductilitydefinition，classification，measurementmethodsandinfluencingfactorsofreinforcedconcreteTherelationshipbetweenthecurvatureductilityfactorandthedisplacementductilityindexwerean

6、alyzedandsummarized，thatthegeneralstructureofthecurvatureductilityfactorisgreaterthanthedisplacementductilityfactorthebetterthestructureofthecurvatureductilitythebettertheductilityiSThispaperisalsobasedonexistingresearch

7、resultsathomeandabroad，introducedthereinforcedconcreteconstitutiveanddisciplinarianofbondingpropertiesofcorrodedsteelbarsandconcretewiththechangeofthesteelcorrosionrateAnddetermineconcretesteelstressstrainrelationsthatth

8、efiniteelementanalysisusedinthispaperThecorecontentofthisarticleiStousefiniteelementanalysissoftwareANSYSonthedamageofreinforcedconcretebeamsindifferentcarbonationofconcreteandsteelcorrosionratepercentageofthemechanicalp